PMID- 35353151 OWN - NLM STAT- MEDLINE DCOM- 20220401 LR - 20220817 IS - 2164-2591 (Electronic) IS - 2164-2591 (Linking) VI - 11 IP - 3 DP - 2022 Mar 2 TI - Topical Administration of 0.3% Tofacitinib Suppresses M1 Macrophage Polarization and Allograft Corneal Rejection by Blocking STAT1 Activation in the Rat Cornea. PG - 34 LID - 10.1167/tvst.11.3.34 [doi] LID - 34 AB - PURPOSE: M1 macrophages can promote corneal allograft rejection (CGR). Inhibiting M1 macrophage polarization by the JAK/STAT1 pathway may be a new strategy to prevent CGR. Tofacitinib, a potent pan-JAK inhibitor, can inhibit JAK/STAT activation. Here, we investigated the inhibitory effects of tofacitinib on M1 macrophage polarization and its therapeutic effect on rat CGR. METHODS: Corneal allograft transplantation was performed and administrated with 0.3% tofacitinib in rats. The corneal allografts were assessed clinically. The corneas were detected for M1 macrophages, lymphatic vessels, and inflammatory cytokine expression using immunohistochemistry and real-time polymerase chain reaction (PCR). Dendritic cells (DCs) in ipsilateral cervical lymph nodes were detected by flow cytometry. The effect and mechanism of tofacitinib on macrophages were explored by real-time PCR, enzyme-linked immunoassay, and western blot analysis in vitro. RESULTS: The results showed that topical administration of 0.3% tofacitinib significantly prolonged corneal graft survival. Tofacitinib-treated corneal allografts displayed a proportionate decrease in M1 macrophages and reduced lymphatic vessel density with fewer DCs in rat ipsilateral cervical lymph nodes. Tofacitinib reduced the mRNA expression of inflammatory cytokines, including iNOS, MCP-1, TNF-alpha, IL-6, IL-1beta, and VEGF-C, and inhibited STAT1 activation in rat corneal grafts. In addition, tofacitinib suppressed M1 macrophage polarization via STAT1 activation after IFN-gamma and lipopolysaccharide stimulation in vitro. CONCLUSIONS: Tofacitinib could suppress M1 macrophage polarization and subsequently delay CGR by inhibiting STAT1 activation. The data indicate that tofacitinib is an effective drug for CGR. TRANSLATIONAL RELEVANCE: This study provided evidence that topical administration of 0.3% tofacitinib may be a novel clinical strategy to prevent CGR. FAU - Yu, Jianfeng AU - Yu J AD - Eye Institute, Affiliated Hospital of Nantong University, Nantong, Jiangsu Province, China. AD - Medical School, Nantong University, Nantong, Jiangsu Province, China. AD - State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, Guangdong Provincial Key Laboratory of Ophthalmology and Visual Science, Guangzhou, Guangdong Province, China. FAU - Li, Pengfei AU - Li P AD - Eye Institute, Affiliated Hospital of Nantong University, Nantong, Jiangsu Province, China. AD - Medical School, Nantong University, Nantong, Jiangsu Province, China. FAU - Li, Zhuang AU - Li Z AD - State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, Guangdong Provincial Key Laboratory of Ophthalmology and Visual Science, Guangzhou, Guangdong Province, China. FAU - Li, Yingqi AU - Li Y AD - State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, Guangdong Provincial Key Laboratory of Ophthalmology and Visual Science, Guangzhou, Guangdong Province, China. FAU - Luo, Jiawei AU - Luo J AD - Eye Institute, Affiliated Hospital of Nantong University, Nantong, Jiangsu Province, China. AD - Medical School, Nantong University, Nantong, Jiangsu Province, China. FAU - Su, Wenru AU - Su W AD - State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, Guangdong Provincial Key Laboratory of Ophthalmology and Visual Science, Guangzhou, Guangdong Province, China. FAU - Liang, Dan AU - Liang D AD - State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, Guangdong Provincial Key Laboratory of Ophthalmology and Visual Science, Guangzhou, Guangdong Province, China. LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't PL - United States TA - Transl Vis Sci Technol JT - Translational vision science & technology JID - 101595919 RN - 0 (Piperidines) RN - 0 (Pyrimidines) RN - 0 (STAT1 Transcription Factor) RN - 0 (Stat1 protein, rat) RN - 87LA6FU830 (tofacitinib) SB - IM EIN - Transl Vis Sci Technol. 2022 Aug 1;11(8):15. PMID: 35976658 MH - Administration, Topical MH - Allografts/metabolism MH - Animals MH - *Cornea/metabolism MH - *Macrophages/metabolism MH - Piperidines MH - Pyrimidines MH - Rats MH - STAT1 Transcription Factor/genetics/metabolism/pharmacology PMC - PMC8976928 COIS- Disclosure: J. Yu, None; P. Li, None; Z. Li, None; Y. Li, None; J. Luo, None; W. Su, None; D. Liang, None EDAT- 2022/03/31 06:00 MHDA- 2022/04/02 06:00 PMCR- 2022/03/30 CRDT- 2022/03/30 12:14 PHST- 2022/03/30 12:14 [entrez] PHST- 2022/03/31 06:00 [pubmed] PHST- 2022/04/02 06:00 [medline] PHST- 2022/03/30 00:00 [pmc-release] AID - 2778716 [pii] AID - TVST-21-4370 [pii] AID - 10.1167/tvst.11.3.34 [doi] PST - ppublish SO - Transl Vis Sci Technol. 2022 Mar 2;11(3):34. doi: 10.1167/tvst.11.3.34.